Progress against the field
Chun Seng Lam has dropped 2:21 behind the field from Seoul 2025 to Jakarta 2026.
Over the same races everyone got 2:08 quicker, so 0:13 slower on the clock looks better than it was.
The biggest step was Osaka 2026 → Jakarta 2026: 5:52 on the field in 148 days.
How this is worked out ⓘ
A finish time moves for two reasons: the athlete, and the race — its course, its floor, its day. For each pair of races in a row in one category, we take everyone who raced both and use the middle of how much they moved (the median) as "the race". Whatever is left is the athlete. Doubles are compared only when the same two people raced both, and told as the pair's; relays are left out. A pair with fewer than 15 athletes in common is not shown. The summary above covers Individual Open · Men, the one raced most; every comparison is in the list below.
Every race
6 races · 5 events
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Jakarta27 Jun 2026Doubles Open · Men1:26:29458/1133Beat 60%
↑ 99 days after Bangkok 1 2026, with Max Shea 3:30 worse than the field Why ↓Close ↑
1:39 slower on the clock in a race that was 1:51 faster for everyone: 3:30 lost to the field.
The fieldCompare these two →1:51 faster This pair1:39 slower -
Jakarta27 Jun 2026Individual Open · Men1:46:42902/1653Beat 45%
↑ 148 days after Osaka 2026 5:52 better than the field Why ↓Close ↑
5:52 better than the field: 7:34 faster on the clock, against 1:42 faster for everyone.
The fieldCompare these two →1:42 faster This athlete7:34 faster -
Bangkok 120 Mar 2026Doubles Open · Men1:24:50 PB699/1542Beat 55%
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Osaka30 Jan 2026Individual Open · Men1:54:16950/1119Beat 15%
↑ 83 days after Seoul 2025 8:13 worse than the field Why ↓Close ↑
8:13 behind the field: 7:47 slower on the clock, against 0:26 faster for everyone.
The fieldCompare these two →0:26 faster This athlete7:47 slower -
Seoul8 Nov 2025Individual Open · Men1:46:29 PB616/702Beat 12%
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Singapore ExpoDate unknownRelay · Mixed1:34:51127/224Beat 43%